Ahorizontal force of 160 n is required to push a bookcase across a floor at a constant velocity. part a what is the net force acting on the bookcase?

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Explanation:

By Newton's Second Law of motion, the net force on an object is proportional to its acceleration.

The acceleration of an object is the rate of change in its velocity relative to time. On the other hand, the question states that this bookcase is moving at a "constant" velocity. In other words, there is no change in the bookcase's velocity. That means that the rate of change in velocity is zero. Hence, the acceleration of the object is also zero.

By Newton's Second Law of motion, the net force on this object would also be zero.

What about the 160 N of horizontal force? Think about how the floor's normal force on the bookcase balances gravity pull. There is likely another horizontal force (e.g., friction) that balance the 160 N force by acting in the opposite direction. Hence, the overall effect on the bookcase (the net force) would be zero.

In general, whenever an object is moving at constant velocity (in the same direction,) or not moving at all, that object is in a translational equilibrium. The net force on the object would be zero.

answer: point c: b. 1/2 potential, 1/2 kinetic, point a: 3/4 of its potential energy, point d or b: 3/4 potential, 1/4 kinetic

explanation: i cant explain. it's difficult to explain.

gpe = mass x gravity constant x height or… gpe = mgh

where… mass: measured in kilograms (kg)

gravity: gravity constant on earth = 10.00 m/s2

height: measured in meters (m)

gpe: measured in joules (j) or kilojoules (kj)

how do you solve gpe?

gravitational potential energy (gpe) is the energy an object has because of its position above the. ground.

gpe = mass x gravity constant x height or… gpe = mgh.

mass:

note: to earn full marks when solving science word problems, you must show your work:

formula.

example:

given values:

mass = 0.3 kg.